import request from '../../utils/request'

let startY = 0; //手指起始距离
let moveY = 0;  //手指移动距离
let moveDistance = 0; //距离
Page({

  /**
   * 页面的初始数据
   */
  data: {
    coverTransfrom: '', //位移量
    coverTransition: '',
    userInfo: {}, //用户信息
    recentPlayListData: []
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    let userInfo = wx.getStorageSync('userInfo');
    if(userInfo) {  
      this.setData({
        userInfo: JSON.parse(userInfo)
      })
      this.getUserRecentPlayList(this.data.userInfo.userId)
    }
  },
  //获取用户播放记录的功能函数
  async getUserRecentPlayList(uid) {
    let recentPlayListData = await request('/user/record',{uid,type: 0})
    let index = 0;
     recentPlayListData = recentPlayListData.allData.splice(0, 10).map(item => {
      item.id = index++;
      return item;
    })
    this.setData({
      recentPlayListData
    })
  },
  //监听用户滑动
  handleTouchStart(event) {
    this.setData({
    coverTransition: ''
    })
    startY = event.touches[0].clientY;
    
  },
  handleTouchMove(event) {
    moveY = event.touches[0].clientY;
    moveDistance = moveY - startY;
    if(moveDistance <= 0) {
      return
    }
    if(moveDistance >= 80) {
      moveDistance = 80
    }
    //动态更新coverTransfrom
    this.setData({
      coverTransfrom: `translateY(${moveDistance}rpx)`
    })
  },
  handleTouchEnd() {
    this.setData({
      coverTransfrom: `translateY(0rpx)`,
      coverTransition: 'linear 0.5s'
    })
  },
  //没有登录情况下点击跳转登录界面
  toLogin() {
    wx.navigateTo({
      url: '/pages/login/login'
    });
  },
  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {
    
  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {
   
  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {

  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function () {

  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {

  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom: function () {

  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage: function () {

  }
})